Re: [hatari-users] Floppy in Falcon mode

[Vincent Rivière <vincent.riviere@xxxxxxxxxxx>]

Nicolas Pomarède wrote:
> Now, it would be interesting to know what tests does emutos to consider
> the drive b: is bogus ? So far, Atari's TOS in falcon mode are working
> with our WD1772 emulation, so emutos should be able to work too with the
> proper tests.

Oh, so there is a bug in EmuTOS floppy routines. Strangely, it works 
fine with ARAnyM... It also works fine on Hatari with ST/TT hardware, 
with any CPU/speed combination. But it fails on Hatari as soon as Falcon 
hardware is selected.

Some info from Didier Méquignon:
> In HD bits 0/1 of 0xFFFF860E.W are set.
> In DD bits 0/1 of 0xFFFF860E.W are cleared.
>
> Why 2 bits, I don't know.

Also, EmuTOS uses the bit 6 of the hardware DIP switches to detect a 
High Density floppy drive. But this information is not used afterwards.

I will have to make some investigation...

--
Vincent Rivière